Section 5. Troubleshooting; Copy Quality; Copy Density; Printer - Ricoh FACSIMILE FAX77 Field Service Manual

5-1. Quality Checks . . . . . . . . .

1. Copy Quality . . . . . . . . . .

1. Copy Density . . . . . . . . .

2. Skew . . . . . . . . . . . .
3. Intelligibility . . . . . . . . . .
4. Copy Test . . . . . . . . . .
2. Operation Panel Display . . . . . .
3. Sensor Initialization . . . . . . . .
4. Mechanism Test . . . . . . . . .
5. Communication Tests . . . . . . .
5-2. Copy Quality Troubleshooting . . .
1. Received Copies . . . . . . . . .
2. Copies made in Copy Mode . . . .
3. Effects of line problems on copy quality
5-3. Machine Operation . . . . . . .
1. ADF/Scanner . . . . . . . . . .

2. Printer . . . . . . . . . . . . .

5-4. Error Codes
5-5. Defective Sensor Table . . . . . .
5-6. Timing Charts . . . . . . . . .
1. Scanner . . . . . . . . . . . .
2. Printer . . . . . . . . . . . . .

SECTION 5. TROUBLESHOOTING

. . . .
. . 5-1
. . 5-1
. . 5-2
. . 5-2
. . 5-2
. . 5-2
. . 5-3
. . 5-3
. . 5-3
. . 5-3
. . 5-4
. . 5-4
. . 5-4
. . 5-6
. . 5-7
. . 5-7
. . 5-10
. . . . 5-14
. . 5-25
. . 5-26
. . 5-26
. . 5-27